static void HandleWriteTimeout(IdleStateHandler self, IChannelHandlerContext context)
{
TimeSpan lastWriteTime = self._lastWriteTime;
TimeSpan nextDelay = self._writerIdleTime - (self.Ticks() - lastWriteTime);
if (nextDelay.Ticks <= 0)
{
// Writer is idle - set a new timeout and notify the callback.
self._writerIdleTimeout = self.Schedule(context, WriteTimeoutAction, self, context,
self._writerIdleTime);
bool first = self._firstWriterIdleEvent;
self._firstWriterIdleEvent = false;
try
{
if (self.HasOutputChanged(context, first))
{
return;
}
IdleStateEvent stateEvent = self.NewIdleStateEvent(IdleState.WriterIdle, first);
self.ChannelIdle(context, stateEvent);
}
catch (Exception ex)
{
_ = context.FireExceptionCaught(ex);
}
}
else
{
// Write occurred before the timeout - set a new timeout with shorter delay.
self._writerIdleTimeout = self.Schedule(context, WriteTimeoutAction, self, context, nextDelay);
}
}
static void HandleAllTimeout(IdleStateHandler self, IChannelHandlerContext context)
{
TimeSpan nextDelay = self._allIdleTime;
if (!self._reading)
{
nextDelay -= self.Ticks() - TimeUtil.Max(self._lastReadTime, self._lastWriteTime);
}
if (nextDelay.Ticks <= 0)
{
// Both reader and writer are idle - set a new timeout and
// notify the callback.
self._allIdleTimeout = self.Schedule(context, AllTimeoutAction, self, context,
self._allIdleTime);
bool first = self._firstAllIdleEvent;
self._firstAllIdleEvent = false;
try
{
if (self.HasOutputChanged(context, first))
{
return;
}
IdleStateEvent stateEvent = self.NewIdleStateEvent(IdleState.AllIdle, first);
self.ChannelIdle(context, stateEvent);
}
catch (Exception ex)
{
_ = context.FireExceptionCaught(ex);
}
}
else
{
// Either read or write occurred before the timeout - set a new
// timeout with shorter delay.
self._allIdleTimeout = self.Schedule(context, AllTimeoutAction, self, context, nextDelay);
}
}
//static Action<object, object> WrapperTimeoutHandler(Action<IdleStateHandler, IChannelHandlerContext> action)
//{
// return (handler, ctx) =>
// {
// var self = (IdleStateHandler)handler; // instead of this
// var context = (IChannelHandlerContext)ctx;
// if (!context.Channel.Open)
// {
// return;
// }
// action(self, context);
// };
//}
static void HandleReadTimeout(IdleStateHandler self, IChannelHandlerContext context)
{
TimeSpan nextDelay = self._readerIdleTime;
if (!self._reading)
{
nextDelay -= self.Ticks() - self._lastReadTime;
}
if (nextDelay.Ticks <= 0)
{
// Reader is idle - set a new timeout and notify the callback.
self._readerIdleTimeout =
self.Schedule(context, ReadTimeoutAction, self, context,
self._readerIdleTime);
bool first = self._firstReaderIdleEvent;
self._firstReaderIdleEvent = false;
try
{
IdleStateEvent stateEvent = self.NewIdleStateEvent(IdleState.ReaderIdle, first);
self.ChannelIdle(context, stateEvent);
}
catch (Exception ex)
{
_ = context.FireExceptionCaught(ex);
}
}
else
{
// Read occurred before the timeout - set a new timeout with shorter delay.
self._readerIdleTimeout = self.Schedule(context, ReadTimeoutAction, self, context,
nextDelay);
}
}
/// <summary>
/// Is called when an <see cref="IdleStateEvent"/> should be fired. This implementation calls
/// <see cref="IChannelHandlerContext.FireUserEventTriggered(object)"/>.
/// </summary>
/// <param name="context">Context.</param>
/// <param name="stateEvent">Evt.</param>
protected virtual void ChannelIdle(IChannelHandlerContext context, IdleStateEvent stateEvent)
{
_ = context.FireUserEventTriggered(stateEvent);
}
protected override void ChannelIdle(IChannelHandlerContext context, IdleStateEvent stateEvent)
{
Debug.Assert(stateEvent.State == IdleState.ReaderIdle);
ReadTimedOut(context);
}
/// <summary>
/// Is called when an <see cref="IdleStateEvent"/> should be fired. This implementation calls
/// <see cref="IChannelHandlerContext.FireUserEventTriggered(object)"/>.
/// </summary>
/// <param name="context">Context.</param>
/// <param name="stateEvent">Evt.</param>
protected void ChannelIdle(IChannelHandlerContext context, IdleStateEvent stateEvent)
{
context.FireUserEventTriggered(stateEvent);
}
protected override void ChannelIdle(IChannelHandlerContext context, IdleStateEvent stateEvent)
{
Contract.Requires(stateEvent.State == IdleState.ReaderIdle);
this.ReadTimedOut(context);
}
